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TITLE:
HAProxy Trash Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA49261

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/49261/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=49261

RELEASE DATE:
2012-05-22

DISCUSS ADVISORY:
http://secunia.com/advisories/49261/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/49261/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=49261

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
A vulnerability has been reported in HAProxy, which can be exploited
by malicious people to potentially compromise a vulnerable system.

The vulnerability is caused due a boundary error when copying data
into the trash buffer and can be exploited to cause a buffer
overflow.

Successful exploitation may allow execution of arbitrary code, but
requires that the global.tune.bufsize configuration option is set to
a value greater than the default and that header rewriting is
configured e.g. via the reqrep or rsprep directives.

The vulnerability is reported in version 1.4.20. Prior versions may
also be affected.

SOLUTION:
Update to version 1.4.21.

PROVIDED AND/OR DISCOVERED BY:
Reported by the vendor.

ORIGINAL ADVISORY:
http://haproxy.1wt.eu/download/1.4/src/CHANGELOG
http://haproxy.1wt.eu/git?p=haproxy-1.4.git;a=commit;h=30297cb17147a8d339eb160226bcc08c91d9530b

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

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About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/advisories/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/advisories/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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